A definition of "matter" more fine-scale than the atoms and molecules definition is: matter is made up of what atoms and molecules are made of, meaning anything made of positively charged protons, neutral neutrons, and negatively charged electrons. There are three states of matter, they are: solid, liquid and gas. In extreme environments, other states may be present, such as plasma, Bose-Einstein condensates and neutron stars .
Reactants are starting materials and are written on the left-hand side of the equation. Products are the end-result of the reaction and are written on the right-hand side of the equation.
